1212323 has 4 divisors (see below), whose sum is σ = 1385520. Its totient is φ = 1039128.

The previous prime is 1212319. The next prime is 1212331. The reversal of 1212323 is 3232121.

It is a happy number.

1212323 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3232121 = 23 ⋅140527.

It is a cyclic number.

It is not a de Polignac number, because 1212323 - 2² = 1212319 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1212298 and 1212307.

It is not an unprimeable number, because it can be changed into a prime (1212373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86588 + ... + 86601.

It is an arithmetic number, because the mean of its divisors is an integer number (346380).

2^1212323 is an apocalyptic number.

1212323 is a deficient number, since it is larger than the sum of its proper divisors (173197).

1212323 is an equidigital number, since it uses as much as digits as its factorization.

1212323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173196.

The product of its digits is 72, while the sum is 14.

The square root of 1212323 is about 1101.0554027841. The cubic root of 1212323 is about 106.6283727557.

Adding to 1212323 its reverse (3232121), we get a palindrome (4444444).

The spelling of 1212323 in words is "one million, two hundred twelve thousand, three hundred twenty-three".